Bury the demo somewhere safe mate , like a time capsule , detailing the folly of the petroleum race ..I hear you, we have choice , some will survive , of course , but by bo means all...back to about a billion i would say , and fairly quickly too, within one hundred and fifty years , probably , a tragedy of Shakespearean proportions , so sad... By the way have you met my mate at archdruidreport.blogspot.com ?? Fascinating chap